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Get a personalized assessment on your risk of contracting the flu and other respiratory diseases, updated daily. Keep yourself and your community safe by staying informed about the spread of respiratory disease. Make proactive and intelligent decisions about your health by knowing how likely you are to get sick.

Hunala leverages cutting edge network science and machine learning (that uses both crowdsourced and public information) to determine your likelihood of contracting the flu or other respiratory illnesses. Using the information you provide about your own location and social interactions, Hunala maps the distribution of symptoms and can offer information about how to avoid contracting an illness. By updating information daily, you have a powerful tool for monitoring risk of exposure.

Hunala’s networking sensor technology was developed in the lab of Sterling Professor at Yale University Nicholas A. Christakis, MD, PhD, and his Human Nature Lab team. All results come directly from this research lab.

How Hunala works:

● list people you spend time with
● indicate where you live
● fill out a brief daily survey to self-report any symptoms you may have
● get daily updates on your exposure risk based on where you live

Use Hunala to:

● stay up-to-date on how flu and respiratory disease is spreading through your community
● get recommendations on how to avoid contracting the flu
● help your community lower its risk of the flu by crowdsourcing an effective response

Ratings and Reviews

3.8 out of 5
39 Ratings

39 Ratings

Princeton55 ,

Questionable value — update

I have two issues with this application.

(1) It is based on “respiratory risk” and not Covid 19 risk. I live in New Jersey which may have a high risk of respiratory illness (I’ll take Yale’s word for it) but has had a low risk of Covid 19 for many weeks. My concern is with Covid 19 so the output of Hunala is valueless.

(2) When I answer “no” to the survey question about whether I have left the house my risk is evaluated as “high” but when I answer “yes” it drops to “medium”. That makes almost no sense unless the survey assumes that the other person in my house has become infectious since the last survey.

There is a useful app somewhere using these techniques but this is not it yet.

Update: the day after I submitted this review the app suddenly gave different results. It now shows New Jersey as “low risk” which makes more sense.

Xyzzy4567 ,

A very useful app

I’ve downloaded a few covid apps which quite frankly have seemed pretty useless. This one on the other hand is very well designed. Covid isn’t going to simply disappear, so “risk management” is the name of the game. But how can one weigh risks vs. reward without knowing ones own personal risk? This app is the answer. It forecasts your personal risk based on geographic and other factors which allows you to adjust your behavior in real time without requiring you to conduct complex risk assessment calculations yourself (which is unrealistic).

MayimbedeAzua ,

Useful, I think...

I like the app; I use it every day. My understanding is that it builds on my social network. Although I’ve shared it with the few people I Interact with, I haven’t heard of anyone else using it. How many people are using it? If its a small number of people, how accurate is it?


Yale University
6.5 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Frequent/Intense Medical/Treatment Information


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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